docs: def load_virt_stream(virt_fd):
      """
      Loads the given conf stream into a dict, trying different formats if
      needed
  
      Args:
          virt_fd (str): file like objcect with the virt config to load
  
      Returns:
          dict: Loaded virt config
      """
      try:
          virt_conf = json.load(virt_fd)
      except ValueError:
          virt_fd.seek(0)
          virt_conf = yaml.load(virt_fd)
  
      return deepcopy(virt_conf)